I made these cookies about a month ago when I threw my girls’ night/guys’ night party. Something about the dulce de leche just seemed a perfectly indulgent and sophisticated spin on sandwich cookies. I knew these were going to be good, but honestly they blew me away. The cookies themselves are so unassuming – little, flat golden brown cookies. They don’t look like anything special at all. But I made them a couple of days before filling them for the party, and they were in very real danger of being demolished before the day arrived. In fact, I had to resort to letting Ben put them on a shelf I couldn’t reach (AKA the caramel corn strategy). Sandwiched with a thin layer of dulce de leche really put them over the top. The flavor was amazing and they looked beautiful. The original recipe makes a huge, huge number of cookies – more than I think anyone could ever possibly need, so I have halved the recipe below.